This is not a write up - more of an FYI for people searching in the future. I read countless threads on the topic and couldn't find this. The Advance Adapters 300475 bolts right in to the front of the 247 t-case, and should bolt into the 242 as well. It even has the spline relief at the front as seen in the pictures. $36.41 at Jegs at time of posting, mated with a used ZJ v8 driveshaft, made it the most budget friendly that I have seen.

Edit: you will also need to source bolts from the yoke to the driveshaft.

Yes I know i need to go back and add a seal guard.

 

I'm having trouble sourcing the flange bolts for the yoke to drive shaft, and a dust seal. What did you use?

 

I used these bolts:
I confess I never went back and did the dust guard. It's been fine without it but this jeep doesn't really go offroad.